pub trait StreamExt: Stream {
// Provided method
fn merge<S1>(self, other: S1) -> Box<dyn Stream<Item = Self::Item> + Unpin>
where Self: Sized + 'static,
S1: Stream<Item = Self::Item> + 'static { ... }
}
Expand description
Extend Stream
with a merge
method.
Provided Methods§
Sourcefn merge<S1>(self, other: S1) -> Box<dyn Stream<Item = Self::Item> + Unpin>
fn merge<S1>(self, other: S1) -> Box<dyn Stream<Item = Self::Item> + Unpin>
Combines multiple streams into a single stream of all their outputs.
Items are yielded as soon as they’re received, and the stream continues yield until both streams have been exhausted. The output ordering between streams is not guaranteed.
§Examples
use futures::stream::StreamExt;
use merge_streams::StreamExt as _;
use futures_lite::future::block_on;
use futures_lite::stream;
fn main() {
block_on(async {
let a = stream::once(1u8);
let b = stream::once(2u8);
let mut s = a.merge(b);
let mut buf = vec![];
while let Some(n) = s.next().await {
buf.push(n);
}
buf.sort_unstable();
assert_eq!(&buf, &[1u8, 2u8]);
})
}